EP0398060B1 - Utilisation de mélanges à base de polyuréthanes comme agent liant d'adhésifs pour coller des blocpolymères du type SBS. - Google Patents

Utilisation de mélanges à base de polyuréthanes comme agent liant d'adhésifs pour coller des blocpolymères du type SBS. Download PDF

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Publication number
EP0398060B1
EP0398060B1 EP90108155A EP90108155A EP0398060B1 EP 0398060 B1 EP0398060 B1 EP 0398060B1 EP 90108155 A EP90108155 A EP 90108155A EP 90108155 A EP90108155 A EP 90108155A EP 0398060 B1 EP0398060 B1 EP 0398060B1
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EP
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Prior art keywords
mixtures
bis
hydroxyphenyl
weight
adhesive
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EP90108155A
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German (de)
English (en)
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EP0398060A1 (fr
Inventor
Manfred Dr. Beck
Horst Dr. Müller-Albrecht
Heinrich Dr. Königshofen
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Bayer AG
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Bayer AG
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J169/00—Adhesives based on polycarbonates; Adhesives based on derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2170/00—Compositions for adhesives
    • C08G2170/20—Compositions for hot melt adhesives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
    • C08L2666/14—Macromolecular compounds according to C08L59/00 - C08L87/00; Derivatives thereof
    • C08L2666/18—Polyesters or polycarbonates according to C08L67/00 - C08L69/00; Derivatives thereof

Definitions

  • the invention relates to the use of polyurethane mixtures as adhesive binders for bonding SBS block polymers.
  • GB-PS 1 293 842 proposes pretreating the parts to be bonded with N-halogen compounds (such as isocyanuric chloride, 1,3-dichloro-5.5-dimethylhydantoin, N-chlorosuccinimide, etc.) or adding these N-halogen compounds to the adhesive Case is the use of a primer and an undesirable step.
  • N-halogen compounds such as isocyanuric chloride, 1,3-dichloro-5.5-dimethylhydantoin, N-chlorosuccinimide, etc.
  • GB-PS 1 500 296 one should use as primer mixtures of isocyanuric chloride and a sulfonamide, e.g. Use p-toluenesulfonamide.
  • GB-PS 2 048 897 the reaction product of styrene / butadiene / styrene (SBS) block polymer and N-halogen compound should be used as a primer.
  • SBS styrene / butadiene / styrene
  • the mixtures claimed above have a sufficient contact adhesive time of approximately 1 minute after heat shock activation and, without the use of primers, provide bonds from SBS (for example as sole material) with good initial and final adhesion.
  • Preferred hydroxyl polyurethanes A for the mixtures according to the invention are largely uncrosslinked, i.e. soluble and meltable polyisocyanate polyadducts with hydroxyl end groups.
  • Suitable hydroxyl polyurethanes A in the context of the invention are reaction products of polyisocyanates and compounds having hydrogen atoms which are reactive toward isocyanates, at least some of these compounds having at least two hydroxyl groups per molecule.
  • Other examples of hydrogen atoms reactive towards isocyanates are the hydrogen atoms of amino, thiol and carboxyl groups.
  • Starting polyisocyanates a) suitable for the preparation of the hydroxyl polyurethanes A to be used according to the invention are any organic compounds having at least two isocyanate groups per molecule, as described, for example, by W. Siefken, Liebigs Annalen der Chemie 562 , 75-136.
  • Diisocyanates X (NCO) 2 are preferably used, where X is an aliphatic hydrocarbon radical with 4 to 12 carbon atoms, a cycloaliphatic hydrocarbon radical with 6 to 15 carbon atoms, an aromatic hydrocarbon radical with 6 to 15 carbon atoms or an araliphatic hydrocarbon radical with 7 to 15 carbon atoms.
  • diisocyanates examples include tetramethylene diisocyanate, hexamethylene diisocyanate, dodecamethylene diisocyanate, 1,4-diisocyanato-cyclohexane, 1-isocyanato-3,3,5-trimethyl-5-isocyanato-methyl-cyclohexane (isophorone diisocyanate), 4,4'-diisocyanatodicyclohexylmethane 4,4'-diisocyanato-dicyclohexyl-propane (2,2), 1,4-diisocyanatobenzene, 2,4-diisocyanatotoluene, 2,4-diisocyanato-diphenylmethane, 2,6-diisocyanatotoluene, 4,4'-diisocyanato-diphenylmethane, p-xylylene diisocyanate and mixtures consisting of these compounds.
  • polyisocyanates known per se in polyurethane chemistry or else modified polyisocyanates containing, for example, carbodiimide groups, allophanate groups, isocyanurate groups, urethane groups and / or biuret groups.
  • Preferred compounds with isocyanate-reactive hydrogen atoms for the preparation of the hydroxyl polyurethanes A to be used according to the invention are b) organic polyhydroxyl compounds, in particular polyester polyols, with a molecular weight of 500 to 6000.
  • Preferred polyester polyols b) for the preparation of the hydroxyl polyester A to be used according to the invention include the reaction products of polyhydric, preferably dihydric and optionally additionally trihydric alcohols with polyhydric, preferably dihydric, carboxylic acids.
  • polyhydric preferably dihydric and optionally additionally trihydric alcohols
  • polyhydric preferably dihydric, carboxylic acids.
  • the corresponding polycarboxylic anhydrides or corresponding polycarboxylic esters of C1-C4 alcohols or mixtures thereof can be used to prepare the Polyester are used.
  • the polycarboxylic acids can be aliphatic, cycloaliphatic, aromatic and / or heterocyclic in nature and optionally substituted, for example by halogen atoms, and / or unsaturated.
  • C4-C12 polycarboxylic acids such as succinic acid, adipic acid, isophthalic acid, trimellitic acid, phthalic anhydride, tetra- and hexahydrophthalic anhydride, tetrachlorophthalic anhydride, endomethylene tetrahydrophthalic anhydride, glutaric anhydride, malefic acid, fumaric acid.
  • polyhydric alcohols are e.g. Ethylene glycol, 1,2-propanediol and -1,3, 1,4-butanediol, 1,3 and -2,3, 1,6-hexanediol, 1,8-octanediol, neopentylglycol, 1,4-bis- ( hydroxymethyl) cyclohexane, 2-methyl-1,3-propanediol, glycerol, trimethylolpropane, hexanetriol-1,2,6, butanetriol-1,2,4, furthermore diethylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycols, dipropylene glycol, polypropylene glycols, and dibutylene glycol Polybutylene glycols in question.
  • Ethylene glycol 1,2-propanediol and -1,3, 1,4-butanediol, 1,3 and -2,3, 1,6-hexan
  • Polycarbonates containing hydroxyl groups can also be considered as a constituent of the polyester polyol component b), e.g. those obtained by reacting diols such as 1,3-propanediol, 1,4-butanediol and / or 1,6-hexanediol, diethylene glycol, triethylene glycol, tetraethylene glycol with carbonic acid derivatives, e.g. Diphenyl carbonate or phosgene can be produced.
  • diols such as 1,3-propanediol, 1,4-butanediol and / or 1,6-hexanediol
  • diethylene glycol triethylene glycol
  • tetraethylene glycol e.g. Diphenyl carbonate or phosgene
  • polyester polyol component b hydroxyl-terminated polyesters based on ⁇ -hydroxy-alkane carboxylic acids with at least 5 carbon atoms, such as polycaprolactones with hydroxyl end groups, are suitable as polyester polyol component b). They can be produced, for example, by polycondensation or polyaddition of ⁇ -hydroxycaproic acid or caprolactone started on diols.
  • Polyester diols b) which are particularly preferred for the preparation of the hydroxyl polyurethanes A to be used according to the invention are described, for example, in DE-PS 12 56 822 and 19 30 336, DE-AS 21 61 340 and DE-OS 35 02 379.
  • dihydroxy polyesters with a molecular weight of more than 600 from unbranched alkane dicarboxylic acids with at least 6 carbon atoms per molecule such as adipic, pimeline, cork, azelaic, sebacic acid and their mixtures and from unbranched alkane diols with at least 4 carbon atoms per molecule such as butanediol-1.4, pentanediol-1.5, hexanediol-1.6 and their mixtures.
  • the carboxylic acid component of these polyester polyols b) is preferably a dicarboxylic acid component which consists of at least 50 carboxyl equivalent%, particularly preferably exclusively, of adipic acid, while the corresponding polyol component contains at least 50 hydroxyl equivalent%, particularly preferably exclusively, of 1,4-butanediol and hexanediol -1.6 exists.
  • polyester polyols b) of the type described above are crystalline.
  • "Crystalline" polyesters in this context are polyhydroxy, preferably dihydroxy polyesters with molecular weights calculated from the hydroxyl number of 600 to 6000 and with Melting ranges in the range of 30 to 75, preferably 40 to 70 ° C, determined by differential scanning calorimetry (DSC) with a heating rate of 20 ° C / minute on a sample that is heated to a temperature above the melting point before measurement and then with a cooling rate of 20 ° C / minute had been cooled to -100 ° C.
  • DSC differential scanning calorimetry
  • Compounds suitable for the preparation of the hydroxyl polyurethanes A to be used according to the invention with hydrogen atoms reactive towards isocyanates also include c) organic polyhydroxyl compounds and amino alcohols with molecular weights from 61 to 499. These preferably include 2 and / or 3-valent, in particular 2-valent polyhydroxyl compounds and / or amino alcohols of the molecular weight range 61 to 499, preferably 61 to 250.
  • structural components c) include, for example, simple polyhydric alcohols such as ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, trimethylolpropane and glycerol.
  • simple polyhydric alcohols such as ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, trimethylolpropane and glycerol.
  • Low molecular weight polyester diols such as adipic acid bis (hydroxyethyl) esters or low molecular weight diols containing ether groups such as diethylene glycol, triethylene glycol, propoxylated bis (4-hydroxyphenyl) propane-2,2, di-, tri- or tetrapropylene glycol can also be used as structural components c) be used.
  • Suitable amino alcohols c) include, for example, compounds such as ethanolamine, propanolamine, N-methyl-diethanolamine, N-ethyl-diisopropanolamine or N, N'-bis (2-hydroxyethyl) perhydropyrazine.
  • Compounds suitable for the preparation of the hydroxyl polyurethanes A to be used according to the invention and having hydrogen atoms which are reactive toward isocyanates also include d) monohydric polyether alcohols with a molecular weight in the range from 800 to 10,000, preferably 1000 to 5000, which are obtained by alkoxylation of monovalent starter molecules such as, for example, methanol, ethanol, n-butanol or phenol are available, ethylene oxide or mixtures of ethylene oxide with other alkylene oxides, such as in particular propylene oxide, being used as the alkoxylating agent.
  • mixed ether alcohols preferably contain at least 40, in particular at least 65 mol% of ethylene oxide residues, based on alkylene oxide residues.
  • the optional use of such structural components d) has the effect that terminally hydrophilic ethylene oxide units placed within polyether chains are incorporated into the polyadducts.
  • reaction of the polyisocyanates a) with the build-up components b) and - if present - c) and d) usually takes place before the addition of the build-up component e) described below and gives a reaction product called "NCO prepolymer" in the following.
  • Compounds suitable for the preparation of the hydroxyl polyurethanes A to be used according to the invention and having hydrogen atoms which are reactive toward isocyanates also include e) mono- and diamino compounds.
  • the term “diamino compound” or “diamines” is also intended to include hydrazine and hydrazine derivatives. Diamino compounds whose molecular weight range is 32 to 500, preferably 60 to 300, with primary and / or secondary amino groups can be used.
  • these are ethylenediamine, hexamethylenediamine, isophoronediamine, 2,4-diaminotoluene, 4,4'-diaminodiphenylmethane, N, N'-dimethylethylenediamine, bis (4-aminocyclohexyl) methane, piperazine, 2,5-dimethylpiperazine, 1, 4-diaminocyclohexane, 1,2-diamino-propane, hydrazine (hydrate), diaminosulfonates of the type described in CA-PS 928 323, or the sodium salt of N- (2-amino-ethyl) -2-aminopropionic acid.
  • Primary and / or secondary amino compounds whose molecular weight is 17 to 500, preferably 17 to 300, can be used as monoamino compounds.
  • these are dibutylamine, N-methylethanolamine, diethanolamine, 3-amino-1-propanol, 2- (3-aminopropyl) methylaminoethanol, 2-amino-1-hydroxymethyl-1,3-propanediol or methylamino or aminoacetic acid and their salts or ammonia.
  • Primary and / or secondary amino compounds are particularly preferably used which further, but do not contain amine groups that are reactive towards isocyanates. These are, for example, ethanolamine, diethanolamine or 2-amino-2-hydroxymethyl-1,3-propanediol.
  • the amino constituent components e) can also be in blocked form, i.e. in the form of the corresponding ketimines (DE-OS 2 725 589), ketazines (DE-OS 2 811 148, US Pat. No. 4,269,748) or amine salts (US Pat. No. 4,292,226) are used.
  • component c) is used in an amount of 0 to 75% hydroxyl or amine equivalent, based on the sum of components b) and c).
  • Component d) can be incorporated in amounts such that the hydroxyl polyurethane A to be used according to the invention has up to 25% by weight, based on hydroxyl polyurethane A, of alkylene oxide units present in polyether groups (cf. US Pat. Nos. 3,905,929 and 4,190,566).
  • Preferred o, o, o ', o', - tetramethylbisphenol polycarbonates B are homopolycarbonates, copolycarbonates and mixtures of these polycarbonates, which are based, for example, on at least one of the following diphenols: and their nuclear halogenated derivatives, in particular Bis (3,5-dimethyl-4-hydroxyphenyl) methane, 2,2-bis (3,5-dimethyl-4-hydroxyphenyl) propane, 2,4-bis (3,5-dimethyl-4-hydroxyphenyl) -2-methylbutane, 1,1-bis (3,5-dimethyl-4-hydroxyphenyl) cyclohexane, ⁇ , ⁇ '-bis (3,5-dimethyl-4-hydroxyphenyl) -p-diisopropylbenzene, Bis (3,5-dimethyl-4-hydroxphenyl) sulfone.
  • bis (3,5-dimethyl-4-hydroxyphenyl) methane 2,2-
  • ooo'.o'-tetramethylbisphenols correspond to the formula wherein X is C1-C5 alkylene or alkylidene.
  • the tetramethylbisphenol polycarbonates B can contain up to 50, preferably up to 25, in particular 0 mol%, based on built-in diphenol units, of built-in units of the following diphenols: Hydroquinone, Resorcinol, Dihydroxydiphenyls, Bis (hydroxyphenyl) alkanes, Bis (hydroxyphenyl) cycloalkanes, Bis (hydroxyphenyl) sulfides, Bis (hydroxyphenyl) ether, Bis (hydroxyphenyl) ketones, Bis (hydroxyphenyl) sulfoxides, Bis (hydroxyphenyl) sulfones, ⁇ , ⁇ '-bis (hydroxyphenyl) diisopropylbenzenes as well as their nuclear alkylated and nuclear halogenated derivatives.
  • Diphenols preferred as co-components are, for example 4,4'-dihydroxydiphenyl, 2,4-bis (4-hydroxyphenyl) -2-methylbutane, ⁇ , ⁇ '-bis (4-hydroxyphenyl) -p-diisopropylbenzene, 2,2-bis (3-methyl-4-hydroxyphenyl) propane and 2,2-bis (3-chloro-4-hydroxyphenyl) propane.
  • Diphenols which are particularly preferred as co-components are, for example 2,2-bis (4-hydroxyphenyl) propane, 2,2-bis (3,5-dichloro-4-hydroxyphenyl) propane, 2,2-bis (3,5-dibromo-4-hydroxyphenyl) propane and 1,1-bis (4-hydroxyphenyl) cyclohexane.
  • the aromatic polycarbonates B can be branched by the incorporation of 0.05 to 2.0 mol% (based on diphenols) of three- or more than three-functional compounds, for example those with three or more than three phenolic hydroxyl groups.
  • chain terminators such as, for example, phenol, halophenols or alkylphenols, are used in a known manner in the calculated amounts.
  • the aromatic polycarbonates B have an average molecular weight M w have from 10,000 to 200,000, preferably from 20,000 to 80,000, determined by light scattering.
  • polycarbonates B to be used according to the invention are described, for example, in DE-OS 15 70 703, 20 63 050, 22 11 956, 22 11 957 and 22 48 817.
  • Particularly preferred monohydric phenols D1 include, for example, n- and iso-nonylphenols, p-tert-butylphenol, hydroquinone, resorcinol, pyrocatechol and their ring-alkylated derivatives.
  • Particularly preferred phenols D1 are polynuclear diphenols such as Dihydroxydiphenyls, Bis (hydroxyphenyl) alkanes, Bis (hydroxyphenyl) cycloalkanes, Bis (hydroxyphenyl) sulfides, Bis (hydroxyphenyl) ether, Bis (hydroxyphenyl) sulfoxides, Bis (hydroxyphenyl) sulfones and ⁇ , ⁇ -bis (hydroxyphenyl) diisopropylbenzenes as well as their nuclear alkylated and nuclear halogenated derivatives.
  • diphenols such as Dihydroxydiphenyls, Bis (hydroxyphenyl) alkanes, Bis (hydroxyphenyl) cycloalkanes, Bis (hydroxyphenyl) sulfides, Bis (hydroxyphenyl) ether, Bis (hydroxyphenyl) sulfoxides, Bis (hydroxyphenyl) sulfones and ⁇ , ⁇ -bis (hydroxyphenyl) diisoprop
  • Examples of particularly preferred multinuclear diphenols D1 are 2,2-bis (4-hydroxyphenyl) propane, 1,1-bis (4-hydroxyphenyl) cyclohexane, 2,2-bis (3,5-dichloro-4-hydroxyphenyl) propane, 2,2-bis (3,5-dibromo-4-hydroxyphenyl) propane, 2,2-bis (3,5-dimethyl-4-hydroxyphenyl) propane, Bis (3,5-dimethyl-4-hydroxyphenyl) methane and Bis (4-hydroxyphenyl) sulfide.
  • phenols D1 with more than one phenolic hydroxyl group are not used as such, but in the form of their monomeric or oligomeric half esters.
  • Suitable acid components for the esterification reaction are carbonic acid derivatives, polyvalent carboxylic acids and phosphoric acids.
  • Preferred compounds D1 of this type are, for example, the carbonic acid ester of bisphenol A and its oligomers with a terminal phenolic hydroxyl group, bisphenol A phosphoric acid ester, oligomeric iso- and terephthalic acid / bisphenol A esters with a terminal phenolic hydroxyl group.
  • Preferred carboxylic and sulfonic acid amides D2 include amides of aliphatic and aromatic C7 - C24 carboxylic acids and aliphatic and aromatic C6-C24 sulfonic acids such as e.g. Benzamide, N-methylbenzamide, N, N-dimethylbenzamide, stearylamide, toluenesulfonamide, N-methylbenzenesulfonamide, N, N-dimethylbenzenesulfonamide, octadecylsulfonic acid-N, N-diethylamide.
  • the mixtures according to the invention can contain up to 40, preferably 5 to 20 parts by weight D per 100 parts by weight (A + B).
  • the mixtures according to the invention can contain additional polyisocyanates E, preferably di-, tri- and / or tetraisocyanates. Because of the reactivity of these compounds, it is advisable to add the polyisocyanates only shortly before the mixtures according to the invention are processed.
  • Suitable polyisocyanates E are the polyisocyanates a) listed above. Triphenylmethane triisocyanate and tris (p-isocyanatophenyl) thionophosphoric acid are particularly suitable.
  • polyisocyanates for example 2,4- and 2,6-tolylene diisocyanate, and any mixtures of these isomers (“TDI”), polyphenylpolymethylene polyisocyanates, such as those produced by aniline-formaldehyde condensation and subsequent phosgenation are ("crude MDI”) and carbodiimide groups, urethane groups, allophanate groups, isocyanurate groups, urea groups or biuret groups containing polyisocyanates (“modified polyisocyanates”), in particular those modified polyisocyanates derived from 2,4- and / or 2,6-tolylene diisocyanate or from 4,4'- and / or 2,4'-diphenylmethane diisocyanate.
  • TDI polyphenylpolymethylene polyisocyanates
  • CADI polyphenylpolymethylene polyisocyanates
  • modified polyisocyanates modified polyisocyanates
  • the mixtures according to the invention can contain up to 15, preferably 0.1 to 10, parts by weight of polyisocyanate E per 100 parts by weight (A + B).
  • the mixtures according to the invention can of course also contain fillers, dyes, pigments, auxiliaries and other polymers, in particular butadiene / styrene block polymers.
  • fillers such as phenolic resins, ketone resins, rosin derivatives, phthalate resins, acetyl or nitrocellulose can also be added to the mixtures.
  • the mixtures according to the invention can be applied both undiluted and from solution in an organic solvent.
  • Preferred solvents are organic liquids with a boiling point up to 150 ° C, preferably up to 120 ° C, such as aliphatic, cycloaliphatic and aromatic, optionally chlorinated hydrocarbons, ketones, alcohols, esters and mixtures thereof.
  • Preferred organic solvents include, for example, acetone, butanone, ethyl and butyl acetate, gasoline, methylene chloride, toluene and mixtures thereof.
  • suitable mixtures are available as cold adhesives. They are particularly characterized by a long contact adhesive time (e.g. up to 2 hours at room temperature).
  • the aromatic polycarbonate B is compatible with both the hydroxyl polyurethane A and the polystyrene component of the substrate and appears to be jointly responsible for anchoring the adhesive to the substrate, e.g. Sole material to be.
  • the adhesion of the adhesive to glass can also be greatly increased by adding 5% by weight of component D.
  • Component D brings about improved activatability of the dried adhesive layer, which is somewhat reduced by the presence of component B.
  • the adhesive binders from the mixtures described are suitable for bonding SBS block polymer compounds without the use of primers, but also for bonding many other materials, e.g. Rubber, soft PVC and other plastics, leather, metals, ceramics, glass and wood.
  • Polyester polyurethane from 1 mol of poly-hexanediol-1,6-adipate with a molecular weight of 3,000, 0.4 mol of 1,4-butanediol and 0.4 mol of 1,6-hexanediol and 1,799 mol of diphenylmethane diisocyanate (MDI) with a solution viscosity (15% in methyl ethyl ketone) of 1-2 Pa.s.
  • MDI diphenylmethane diisocyanate
  • Polyester polyurethane from 1 mole of poly-hexanediol-1,6-adipate with a molecular weight of 2,250, 0.45 mole of 1,4-butanediol and 0.45 mole of 1,6-hexanediol and 1.899 moles of diphenylmethane diisocyanate (MDI) with a solution viscosity (15%) in methyl ethyl ketone) of 1-2 Pa.s.
  • MDI diphenylmethane diisocyanate
  • Polyester polyurethane from 1 mol of a poly-hexanediol-1,6-adipate with a molecular weight of 3,000, 0.55 mol of 1,4-butanediol and 0.55 mol of 1,6-hexanediol and 2,099 mols of diphenylmethane diisocyanate (MDI) with a solution viscosity (15% ig in methyl ethyl ketone) of 1-2 Pa.s.
  • MDI diphenylmethane diisocyanate
  • Styrene / butadiene block polymer of the SBS type butadiene content 64%, intrinsic viscosity 79 (cm3 / g in CH2Cl2) (Cariflex 1102®, commercial product from Shell AG).
  • a polycarbonate made from tetramethylbisphenol A 2,2-bis (3,5-dimethyl-4-hydroxyphenyl) propane and phosgene with a viscosity ⁇ rel. of 1.30 (0.5 g polycarbonate in 100 ml CH2Cl2). This value corresponds to an average degree of polymerization P from 60.
  • Tris (p-isocyanatophenyl ester) thionophosphoric acid solution in methylene chloride, NCO content 5.4 ⁇ 0.2%.
  • soft PVC 45% dioctyl phthalate
  • a filled sole material based on styrene / butadiene block polymer After application to strips of 15 x 3 cm, both sides were allowed to flash off for 30 minutes and the sample with the thermoplastic rubber was then subjected to shock activation for 6 seconds with the aid of an IR radiator (radio activation device type A 1000).
  • test specimens were placed on top of one another and pressed within 10 seconds in a press at room temperature under a pressure of 0.4 MPa for 10 seconds.
  • strips 4 cm long and 2 cm wide were used for the test. The one corresponding to a sole material After the adhesive had been applied, strips were stored open at room temperature for one day and then activated for 3 seconds in the Funck activation device type A 1000 (70 ° C.).
  • the procedure was as under 2, but with an activation temperature of 35 ° C. 30 minutes after activation, the strip was immediately placed in a cross with the 30-minute-old, non-activated strip and loaded with a weight of 10 N for 5 seconds.
  • the minimum activation temperature was determined at which the adhesive films had contact immediately after activation.
  • the adhesive with a thickness of 0.3 mm was applied to wood-free cardboard. At intervals of 15 minutes, 5 mm wide test strips were then placed in a cross over each other and pressed with 50 g for 10 seconds. The determination of the contact adhesive time was complete when the adhesive films no longer adhered to one another.
  • Adhesive mixtures according to Table 1A were prepared and the solutions for bonding thermoplastic rubber (sole mixture with 56% SBS block polymer, 36% oil, 8% filler, abbreviation IB 1) against soft PVC (45% plasticizer) were used.

Claims (5)

1. Utilisation de mélanges de :
A) 85 à 99,5 parties en poids d'un polyuréthanne hydroxylé, et
B) 15 à 0,5 parties en poids d'un polycarbonate aromatique, poids moléculaire moyen Mw de 10 000 à 200 000, dont les motifs de diphénols chimiquement combinés consistent pour au moins 50 moles % en motifs d'o,o,o',o'-tétraméthylbisphénol, en tant que liants pour colles prévues pour le collage de polymères séquencés SBS,
Utilisation des mélanges selon la revendication 1, dans lesquels les motifs de diphénols du polycarbonate B consistent pour au moins 75 moles % en motifs d'o,o,o',o'-tétraméthylbisphénol.
Utilisation des mélanges selon les revendications 1 et 2, dans lesquels les motifs de diphénols du polycarbonate B consistent pour 100 moles % en motifs d'o,o,o',o'-tétraméthylbisphénol.
Utilisation des mélanges selon les revendications 1 à 3, dans lesquels il y a 5 à 20 parties en poids des phénols D1 et/ou des amides D2 pour 100 parties en poids de (A + B).
Utilisation des mélanges selon les revendications 1 à 4, dans lesquels il y a 0,1 à 10 parties en poids du polyisocyanate E pour 100 parties en poids de (A + B).
EP90108155A 1989-05-11 1990-04-28 Utilisation de mélanges à base de polyuréthanes comme agent liant d'adhésifs pour coller des blocpolymères du type SBS. Expired - Lifetime EP0398060B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90108155T ATE89852T1 (de) 1989-05-11 1990-04-28 Verwendung von polyurethan-mischungen als klebstoffbindemittel zur verklebung von sbsblockpolymerisaten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3915424 1989-05-11
DE3915424A DE3915424A1 (de) 1989-05-11 1989-05-11 Polyurethan-mischungen und ihre verwendung als klebstoffbindemittel

Publications (2)

Publication Number Publication Date
EP0398060A1 EP0398060A1 (fr) 1990-11-22
EP0398060B1 true EP0398060B1 (fr) 1993-05-26

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EP90108155A Expired - Lifetime EP0398060B1 (fr) 1989-05-11 1990-04-28 Utilisation de mélanges à base de polyuréthanes comme agent liant d'adhésifs pour coller des blocpolymères du type SBS.

Country Status (6)

Country Link
US (1) US5106446A (fr)
EP (1) EP0398060B1 (fr)
JP (1) JPH037759A (fr)
AT (1) ATE89852T1 (fr)
DE (2) DE3915424A1 (fr)
ES (1) ES2055215T3 (fr)

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US5262216A (en) * 1992-08-04 1993-11-16 Avery Dennison Corporation Pressure sensitive label assembly
US6183824B1 (en) 1995-06-07 2001-02-06 Havco Wood Products, Inc. Composite wood flooring
DE19541923C2 (de) * 1995-11-10 2001-07-12 Sika Werke Gmbh Reaktiver thermoplastischer Heißschmelzklebstoff
US6300414B1 (en) * 1998-08-28 2001-10-09 Basf Corporation Additive for coating compositions for adhesion to TPO substrates
US6423778B1 (en) 1999-06-30 2002-07-23 Basf Corporation Process for coating olefinic substrates
MXPA03001299A (es) * 2000-11-07 2003-06-24 Basf Corp Composiciones de recubrimiento para la adhesion a sustratos olefinicos.
US7112631B2 (en) * 2002-10-24 2006-09-26 National Starch And Chemical Investment Holding Corporation Moisture cured reactive hot melt adhesive with monofunctional reactants as grafting agents
US7972707B2 (en) * 2003-09-04 2011-07-05 Havco Wood Products, LLC. Trailer flooring with hotmelt coating
US20060179733A1 (en) * 2005-02-11 2006-08-17 Havco Wood Products, L.L.C. Durable wood-plastic composite flooring for trailers
US20070193179A1 (en) * 2006-01-27 2007-08-23 Prolam, Societe En Commandite Wooden laminated floor product to improve strength, water protection and fatigue resistance
CA2605215C (fr) * 2006-10-02 2014-12-02 Prolam, Societe En Commandite Utilisation de coloration pour ameliorer la detection des manques au rabotage lors de l'utilisation d'equipement de balayage et d'une scie automatisee pour eliminer les manques aurabotage de pieces de bois
CN108068176B (zh) * 2017-12-26 2020-09-08 芜湖市长江起重设备制造有限公司 一种耐高温聚碳酸酯型水性聚氨酯基胶合板的制备方法

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DE3810568A1 (de) * 1988-03-29 1989-10-19 Bayer Ag Polyurethanmischungen und ihre verwendung als klebstoffe

Also Published As

Publication number Publication date
ES2055215T3 (es) 1994-08-16
DE59001537D1 (de) 1993-07-01
ATE89852T1 (de) 1993-06-15
US5106446A (en) 1992-04-21
EP0398060A1 (fr) 1990-11-22
DE3915424A1 (de) 1990-11-15
JPH037759A (ja) 1991-01-14

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